Extreme temperatures can also be dangerous for the watch and even lead to a standstill. Therefore, Sinn uses Arctic II for the 206and for other models a special oil and pays attention to special tolerances. This makes the watch functionally reliable in the range between -45 and +80 degrees Celsius, which corresponds to an increase of 50 percent. Every single watch is tested for these extreme temperatures. 20 years ago the Frankfurt watchmaker Sinn Spezialuhren launched the previous model 203 Arktis as the first diving chronograph with the brand's own temperature resistance technology. Now the classic comes back with the blue dial and has been enlarged by two millimeters to 43 millimeters. The stainless steel case is waterproof up to 300 meters, protected from fogging thanks to Sinn's own Ar-Dehumidifying technology, vacuum-proof and equipped with the brand-typical captive rotating bezel. Inside - between two sapphire glasses - that is tickingEta chronograph caliber Valjoux 7750 with automatic winding , date and day of the week. The 206 Arktis II costs 3,490 euros with an embossed cowhide leather strap, 3,690 euros with a silicone strap and 3,690 euros with a stainless steel strap.
Extremely tough: Victorinox INOX Carbon Mechanical
It was run over by a wheel loader and a 64-ton tank, it was frozen and melted free again with a burner, it whizzed down an ice channel on the runner of a bobsleigh, was dropped from a height of ten meters onto a stone floor and survived a two-hour 90 degree Program in the washing machine. These are just a few of the 130 tests that the Victorinox INOX had to endure in prototype status. The housing of the INOX Carbon Mechanical model, which is waterproof up to 200 metersconsists of light and robust carbon fibers. With removable protection made of black plastic, the 43 millimeter sports and everyday timepiece is even completely spared from scratches. The latter leaves the dial free and is therefore not only suitable for transport, but also as a design variant for everyday use. The Extre timepiece is powered by the Sellita SW 200 automatic movement . For 1090 euros you can go through thick and thin with the INOX.